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PCF8574 датащи(PDF) 10 Page - Texas Instruments |
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PCF8574 датащи(HTML) 10 Page - Texas Instruments |
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10 / 26 page ![]() A A A A S 0 1 0 0 A1 A2 A0 1 Data 1 1 P Data 3 Start Condition Acknowledge From Slave Acknowledge From Slave Data From Port Data From Port Slave Address R/W 8 7 6 5 4 3 2 1 tir tir tsps tiv Data 1 Data 2 Data 3 INT Data Into Port B B A A Pn INT R/W A tir 0.7 × VCC 0.3 × VCC 0.7 × VCC 0.3 × VCC 0.7 × VCC 0.3 × VCC 0.7 × VCC 0.3 × VCC INT SCL View B−B View A−A tiv W A 0.7 × VCC 0.3 × VCC SCL D tpv Slave Acknowledge Unstable Data Last Stable Bit SDA Pn PCF8574 SCPS068G – JULY 2001 – REVISED MAY 2008 ............................................................................................................................................................... www.ti.com PARAMETER MEASUREMENT INFORMATION (continued) Figure 4. Interrupt Voltage Waveforms Figure 5. I2C Write Voltage Waveforms 10 Submit Documentation Feedback Copyright © 2001–2008, Texas Instruments Incorporated Product Folder Link(s): PCF8574 |
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